Anecdotally reflected in my youth- had little exposure to television as a kid. I simply could not ignore "background televisions" for many years, while other kids whom I knew grew up with constant "background television" could ignore it without difficulty.
I think being vulnerable to overbearing stimulus is probably less evil than requiring ongoing level of stimulus to function. Your kids might struggle with pulling them away from stimulus they are not used to, but they will figure it out as they grow up and hopefully keep the ability to go without constant stimulus.
Personally, my plan is to minimize background stimulus so as not to stunt the ability to focus, and to ensure there are balanced periods of both stimulus and no stimulus.
You might say that stimulus will be harder and harder to escape in the future, but I like to think if you choose, you will still be able to keep much of your life free of it.
